Adaptive inexact Newton methods for discretizations of nonlinear diffusion PDEs. II. Applications

We consider nonlinear algebraic systems resulting from numerical discretizations of nonlinear partial differential equations of diffusion type. In order to solve them, some iterative nonlinear solver, and, on each step of this solver, some iterative linear solver are used. In Part I of this work, we have developed a general abstract framework hinging on equilibrated flux reconstructions to derive stopping criteria for both iterative solvers and to control the size and distribution of the overall approximation error. In this Part II, we apply this framework to various discretization schemes like finite elements, nonconforming finite elements, discontinuous Galerkin, finite volumes, and lowest-order mixed finite elements; to different linearizations like fixed point and Newton; and to arbitrary iterative linear solvers. This leads to new guaranteed and robust a posteriori error estimates for nonlinear diffusion problems in the presence of linearization and algebraic errors. Moreover, for many discretization schemes, we improve on, or derive new, flux equilibration techniques.

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Source https://hal.science/hal-00681426
Author Ern, Alexandre, Vohralík, Martin
Maintainer CCSD
Last Updated May 23, 2026, 21:16 (UTC)
Created May 23, 2026, 21:16 (UTC)
Identifier hal-00681426
Language en
Rights https://about.hal.science/hal-authorisation-v1/
contributor Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique (CERMICS) ; École nationale des ponts et chaussées (ENPC)
creator Ern, Alexandre
date 2012-03-21T00:00:00
harvest_object_id d3108b6b-e467-40c1-83e3-5ea5c4bef6f4
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-02-07T00:00:00
set_spec type:REPORT